989331 has 8 divisors (see below), whose sum is σ = 1507584. Its totient is φ = 565320.
The previous prime is 989327. The next prime is 989341. The reversal of 989331 is 133989.
989331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 989331 - 22 = 989327 is a prime.
It is a super-2 number, since 2×9893312 = 1957551655122, which contains 22 as substring.
989331 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 989292 and 989301.
It is not an unprimeable number, because it can be changed into a prime (989321) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23535 + ... + 23576.
It is an arithmetic number, because the mean of its divisors is an integer number (188448).
2989331 is an apocalyptic number.
989331 is a deficient number, since it is larger than the sum of its proper divisors (518253).
989331 is a wasteful number, since it uses less digits than its factorization.
989331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47121.
The product of its digits is 5832, while the sum is 33.
The square root of 989331 is about 994.6511951433. The cubic root of 989331 is about 99.6430943658.
The spelling of 989331 in words is "nine hundred eighty-nine thousand, three hundred thirty-one".
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